The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 1977
Filed:
Jul. 28, 1975
Victor Company of Japan, Limited, Yokohama, JA;
Abstract
A record disc recording system comprises a circuit for producing a signal which is substantially 2V.sup.2 . a, where; V is the relative velocity between a cutter head and a disc, and a is a specific coefficient, which varies in accordance with the traversing of the cutter head over the disc. A circuit produces a distortion signal {f'(t)}.sup.2 /{2V.sup.2. a - f'(t)} (wherein .vertline.2V.sup.2. a.vertline.>.vertline. f'(t).vertline.) responsive to an original signal f(t) and to the signal 2V.sup.2. a. Another circuit produces a recording signal g(t) with distortion (where g(t) = f(t) + {f'(t)}.sup.2 /2 {2V.sup.2. a - f'(t)}) responsive to the original signal f(t) and to the distortion signal {f'(t)}.sup.2 /{2V.sup.2. a - f'(t)}. A cutter head records the signal g(t) on a record disc.